Subtract 21/49 from 2/30
2/30 - 21/49 is -38/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 49 is 1470
Next, find the equivalent fraction of both fractional numbers with denominator 1470 - For the 1st fraction, since 30 × 49 = 1470,
2/30 = 2 × 49/30 × 49 = 98/1470 - Likewise, for the 2nd fraction, since 49 × 30 = 1470,
21/49 = 21 × 30/49 × 30 = 630/1470 - Subtract the two like fractions:
98/1470 - 630/1470 = 98 - 630/1470 = -532/1470 - After reducing the fraction, the answer is -38/105
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